Patent GB-189803682-A (GB)
Title: Improvements in Printing, Cutting, and Folding Machines.
Inventor: FELL JOHN CORRY
Filed: 1898-02-14
Granted: 1899-02-04
Abstract: 3682. Fell, J. C., [Cottrell & Sons' Co., C. B.]. Feb. 14. Folding paper; associating and collecting apparatus.- Relates to a folding- machine for use in connection with webperfecting printing- presses. The printed web 2, Fig. 2, passes from the last compression roller to the creasing-rollers 3, 4, where, by means of the blade 5 and the groove 6, it is creased. The web then passes between the rollers 7, 8 and vertically downwards between the rollers 9, 10 and the plate 20 and fingers 21, which form a guide-way, to the cutting-mechanism. A set of endless bands 11, which passes round the rollers 7, 8, 9 and over a tension roller 12, serves to help to feed forward the web 2. A paste blade 15, which is fed from a fountain 18, revolves over the roller 8 and delivers paste to the transverse margin of every second sheet of the printed web. The cutting-mechanism consists of two obliquelyarranged cutting-blades 26, 27, preferably mounted on discs 28 on the shafts 29. Below the cutters is a guide-way consisting of fingers 30 and strips 32, formed integrally with which is another series of guidestrips 33. Below this guide-way is a rotary tucker 36, preferably formed of discs cut away as shown at 39 and provided with a tucking-nose 40. The collecting-cylinder 35 is made so that its circumference is equal in length to the length of a plurality of the sheets to be folded. In the example shown, the circumference of the cylinder is three times the length of a sheet. The cylinder is provided with three sets of grippers 43, 44, 45, and three folding-blades 46, 47, 48. Adjacent to the cylinder is a pair of folding-rollers 41 provided with carrying-tapes 42. When a sheet passes through the cutting-mechanism it is seized by one of the grippers immediately before being severed, and begins to travel round the cylinder. When the machine is running regularly, each set of grippers acts first to seize a single sheet and carry it round one full revolution. A second sheet is superposed upon the first, and the two are carried round to the folding-rollers. Each folding-blade acts once every two revolutions, so that two superposed sheets are folded into the rollers 41 every two-thirds of a revolution of the cylinder. The cut-away portion of the tucker 37 allows the grippers to open and the nose 40 directs the sheets into the grippers. The tucker also breaks any connection that may exist between the sheets. Each set of grippers is mounted upon an axle 50, Fig. 4, which is provided with arms 52, 53, the former of which has a roller 54 acted upon by the fixed cam 55 to effect the opening and closing of the grippers. A rod 56, controlled by a spring 57, is attached to the arm 52 for the purpose of keeping the roller 54 against the face of the cam. A rotating cam 58 releases the grippers when the sheets are transferred to the folding-rollers. Each folding-blade shaft 51 has arms 62, 63 provided with rollers 64, 65 acted upon by a slot 66, and a flying cam 67 which is adapted to operate each folding-blade once every two revolutions of the cylinder. The shaft 71 of one of the folding-rollers is journalled in a spring-controlled lever 72 so that the roller may be yieldingly supported. Motion is transferred from the last compression cylinder of the printing-press to the movable parts of the folding-machine by means of toothed gearing. The folding-apparatus may be adapted to operate so as not to superpose the sheets, in which case each folding-blade shaft is provided with an additional blade. In the Provisional Specification, a four-gripper collecting-cylinder with two sets of folding-rollers is described.